python 主线程强制关闭子线程
2019-08-25 python 1934
import threading, ctypes, inspect import time import os class WorkThread(threading.Thread): def run(self): try: while True: time.sleep(3) print("run.. thread") except Exception as e: print(str(e)) def stop(self): self._async_raise(self.ident, SystemExit) def _async_raise(self, tid, exctype): """raises the exception, performs cleanup if needed""" tid = ctypes.c_long(tid) if not inspect.isclass(exctype): exctype = type(exctype) res = ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, ctypes.py_object(exctype)) if res == 0: raise ValueError("invalid thread id") elif res != 1: # """if it returns a number greater than one, you're in trouble, # and you should call it again with exc=NULL to revert the effect""" ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, None) raise SystemError("PyThreadState_SetAsyncExc failed") print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C')) try: t = WorkThread() t.start() i = 0 while True: time.sleep(1) print("main thread") i = i+1 if i>3: t.stop() #强制关闭子线程 except Exception as e: print(str(e))
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